Tag archives for energy efficiency

After a downsizing during the Great Recession, U.S. homes are once again upsizing and using more energy—though less per square foot.

So you’re thinking about installing a geothermal cooling and heating system? You can do this, and you have the means to install the best system money can buy for a fair price. There are a lot of competent geothermal HVAC professionals that are willing to help. As in any transaction, you just need to be…

For the first time in the short history of the U.S. government’s Renewable Fuel Standard, the Environmental Protection Agency (EPA) has proposed to decrease the total amount of renewable fuel required as part of the national supply, with a 41 percent cut to the advanced biofuel category. But a study recently published by our organization…

They came, they built super-efficient vehicles, gained friends and conquered. All 105 student teams from 15 nations participating in this year’s Shell* Eco-marathon Asia are going back to their home countries with a feeling of fulfillment and pride. But winners of the four-day race for fuel-efficiency—from Thailand, Indonesia and Singapore—were in an even more festive…

Which is more important: Meeting energy demand, lowering carbon emissions, or conserving water? How about all three? The Three Big Challenges Facing the Electric Power Industry The U.S. electric power industry has huge challenges to meet in the coming decades. First and foremost it has to meet growing demand for electricity. By 2050 it is…

Comments Off on The Arab Oil Embargo: A Crisis That Saved Us

Forty years ago this month, Syria and Egypt launched a Yom Kippur surprise attack on Israel to regain land and prestige lost in the 1967 Six-Day War. Israeli forces were nearing Damascus and Cairo when a ceasefire took hold. But as the Soviet Union resupplied its Arab clients and President Nixon resupplied Israel, Arab members…

Iraq is longing for renewable and sustainable energy solutions, National Geographic Explorer Thomas H. Culhane found out. It just takes a little extra time to don body armor and get through security when you’re packing food-waste grinders, solar panels, water pumps, and bio-gas systems. Culhane filed this report from his travels to Iraq, a place…

Comments Off on With a New Look, French Teams Take Top Prizes in Shell Eco-marathon Europe

For several years running, French engineering students from two neighboring Loire Valley schools, Polytech Nantes and La Joliverie, have shared engineering and effort to build rocket-shaped vehicles that captured top prizes at Shell Eco-marathon Europe fuel efficiency race. But the students began to feel there was something lacking in their cars’ perennially award-winning profile. “It…

Comments Off on Stichting Rootbox: Sustainable Design Through Collaboration, With or Without Wind Turbine

A hot pink wind turbine turned above one paddock at Shell Eco-marathon Europe this year; it was the stall of the team from Inholland University of Applied Sciences in the Netherlands. The students, all studying aeronautical engineering, have designed a vehicle with a detachable rear end that can be changed in few minutes and converted…

Comments Off on Turkey’s Celal Bayar Still Sun-Powered, With Smaller Panels

Kağan Meijer of Celal Bayar University in Turkey explains the changes made to the vehicle to conform to new rules for Shell Eco-marathon Europe 2013. Celal Bayar’s car last year, Tarzan, had large over-hanging solar panels, but this year, the  solar panels needed to be smaller to be integrated into the body of the vehicle.…